body {
    max-width: 700px;
    margin: 0 auto;
    padding: 45px 10px;
}

.example {
    position: relative;
    margin: 15px 0 0;
    padding: 39px 19px 14px;
    background-color: #fff;
    border-radius: 4px 4px 0 0;
    border: 1px solid #ddd;
}

@media (max-width: 500px) {
    .example {
        padding: 39px 10px 14px;
    }
}

.example:after {
    content: "Example";
    position: absolute;
    top: 0;
    left: 0;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: bold;
    background-color: #f5f5f5;
    color: #9da0a4;
    border-radius: 4px 0 4px 0;
}

.highlight {
    position: relative;
    border-radius: 0 0 4px 4px;
    border: 1px solid #ddd;
    border-top: none;
}

.highlight.highlight-middle {
    margin: 0;
    border-radius: 0;
}

.highlight-html:after {
    content: "HTML";
    position: absolute;
    top: 0;
    right: 0;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: bold;
    background-color: #f5f5f5;
    color: #555;
    border-radius: 0 0 0 4px;
}

.highlight-js:after {
    content: "js";
    position: absolute;
    top: 0;
    right: 0;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: bold;
    background-color: #f5f5f5;
    color: #555;
    border-radius: 0 0 0 4px;
}

.btn {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 110px;
    height: 40px;
    font-size: 14px;
    margin: 0 0 10px;
    cursor: pointer;
    outline: none;
}

summary {
    outline: none;
    cursor: pointer;
    margin-bottom: 10px;
}

/* github-corner */
.github-corner:hover .octo-arm {
    animation: octocat-wave 560ms ease-in-out
}

@keyframes octocat-wave {
    0%,
    100% {
        transform: rotate(0)
    }
    20%,
    60% {
        transform: rotate(-25deg)
    }
    40%,
    80% {
        transform: rotate(10deg)
    }
}

@media (max-width: 500px) {
    .github-corner:hover .octo-arm {
        animation: none
    }

    .github-corner .octo-arm {
        animation: octocat-wave 560ms ease-in-out
    }
}

/* modernizr */
.adownload li.adownload {
    color: green;
}

.canvas li.canvas {
    color: green;
}

.cssanimations li.cssanimations {
    color: green;
}

.csstransforms li.csstransforms {
    color: green;
}

.documentfragment li.documentfragment {
    color: green;
}

.fullscreen li.fullscreen {
    color: green;
}

.localstorage li.localstorage {
    color: green;
}

.svg li.svg {
    color: green;
}

.texttrackapi li.texttrackapi {
    color: green;
}

.track li.track {
    color: green;
}

.todataurljpeg li.todataurljpeg {
    color: green;
}

.todataurlpng li.todataurlpng {
    color: green;
}

.todataurlwebp li.todataurlwebp {
    color: green;
}

.video li.video {
    color: green;
}

.websockets li.websockets {
    color: green;
}

.setclasses li.setclasses {
    color: green;
}

.no-adownload li.adownload {
    color: red;
}

.no-canvas li.canvas {
    color: red;
}

.no-cssanimations li.cssanimations {
    color: red;
}

.no-csstransforms li.csstransforms {
    color: red;
}

.no-documentfragment li.documentfragment {
    color: red;
}

.no-fullscreen li.fullscreen {
    color: red;
}

.no-localstorage li.localstorage {
    color: red;
}

.no-svg li.svg {
    color: red;
}

.no-texttrackapi li.texttrackapi {
    color: red;
}

.no-track li.track {
    color: red;
}

.no-todataurljpeg li.todataurljpeg {
    color: red;
}

.no-todataurlpng li.todataurlpng {
    color: red;
}

.no-todataurlwebp li.todataurlwebp {
    color: red;
}

.no-video li.video {
    color: red;
}

.no-websockets li.websockets {
    color: red;
}

.no-setclasses li.setclasses {
    color: red;
}